Dalilesen Impurity 61 CAS CATO-C4X-301061
| CAS No. | CATO-C4X-301061 |
| Molecular Formula | C18H24ClN3O2 |
| Molecular Weight | 349.86 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 349.86 g/mol gives Dalilesen Impurity 61 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies Dalilesen Impurity 61 (CAS CATO-C4X-301061), a pharmacopoeial impurity reference standard (molecular formula C18H24ClN3O2, MW 349.86 g/mol) used for the identification and quantification of trace impurities in APIs.
Dalilesen Impurity 61 (C18H24ClN3O2) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C18H24ClN3O2 |
| Molecular Weight | 349.86 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Dalilesen Standards
- Dalilesen Impurity 6 (CAS 1788104-75-5)
- Dalilesen impurity 40 (CAS CATO-C4X-301040)
- Dalilesen impurity 27 (CAS CATO-C4X-301027)
- Dalilesen Impurity 32 (CAS CATO-C4X-301032)
- Dalilesen Impurity 59 (CAS CATO-C4X-301059)
- Dalilesen Impurity 3 (CAS 1788104-74-4)
- Dalilesen Impurity 58 (CAS CATO-C4X-301058)
- Dalilesen Impurity 30 (CAS 2248726-39-6)
Recommended Standards
- N-[3-(4-tert-Butyl-benzoyl)-5-methyl-thiophen-2-yl]-2-chloro-acetamide (CAS 459825-36-6)
- Losartan Impurity 58 (CAS CATO-C4X-168358)
- Clotrimazole-d5 (CAS 1185076-41-8)
- Boron tris(trifluoroacetate), (1M Solution in TFA) (CAS 350-70-9)
- Drotaverine Impurity 25 (CAS CATO-C4X-243525)
- Esmolol Impurity 38 (CAS 55226-78-3)
- Atomoxetine Impurity 19 (CAS CATO-C4X-155019)
- 3-Amino-4-formylbenzonitrile (CAS 1289164-87-9)
- 2-Cyano-3-(difluoromethyl)-5-methylisonicotinic acid (CAS 1805431-01-9)
- Ethyl 5-cyano-3,4-dimethylthieno[2,3-b]thiophene-2-carboxylate (CAS 175202-57-0)
- 3-(Isopentyloxy)benzoic acid (CAS 128161-60-4)
- Leucogen Impurity 11 (CAS CATO-C4X-288911)
- (1S,2R)-2-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)cyclohex-3-ene-1-carboxylic acid (CAS 233600-20-9)
- Glucagon-like peptide 2 (CAS 89750-15-2)
Why CATO?
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- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com